jonnyGURU Forums

jonnyGURU Forums (http://www.jonnyguru.com/forums/index.php)
-   Electronic Component Discussion (http://www.jonnyguru.com/forums/forumdisplay.php?f=8)
-   -   noob here, looking for a solution! (http://www.jonnyguru.com/forums/showthread.php?t=8854)

cineo 02-16-2012 02:34 PM

noob here, looking for a solution!
 
Hello all! Names Chris.. here is my poblem. But before I do I must say that I cannot disclose what the device is called or what its going to be used for.. ok here it goes... My power source ranges from 4v to 12v, I need to power a light source... In between the power source and light source i need a dial to regulate the volts that get to the light.. so if my power source is say 6v I need the dial to be able to turn down the volts to say the lowest setting which will be 4v which will dim my light... Can anyone help?

allikat 02-18-2012 08:52 AM

The easy way is a variable resistor. The high tech way would involve VRMs or pulsing the LED to provide a dimmer light.

Shadowww 02-18-2012 06:40 PM

Is light a LED or incan light?

LED: you'll need a LED driver with PWM support.
http://www.taskled.com/ - these guys for example have some nice drivers, which go up to 6 amps (enough to drive a Luminus SST-90 or something like that)

Incan: any DC-DC step-down converter will do (make sure it's output current capability doesn't exceeds your needs).


All times are GMT -4. The time now is 12:46 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright © JonnyGURU.com 2000 -